Counterpoise attachment particularly for cycle-pedals



Dec. 1, 1931. A. TALKE ET AL 1,834,296

COUNTERPOISE ATTACHMENT PARTICULARLY FOR CYCLE PEDALS Filed May 7, 1950 3 90 @IMN) abko uwg Patented Dec. 1, r 1931 UNITED STATES PATENT oFFicE 1 ALWIN TALKE, on BRESLAU, AND ARTHUR rental, or oBEn- AUsirz, GERMANY, As-

SIGNORS or ONE-THIRD TO IBERTHA TALKE, or oBER-LAUsIrz, ennmnx H COUNTERPOISE ATTACHMENT PARTICULARLY FOR GYGLE'PEDAIJS Application filed May 7, 1930, Serial No. 450,546, and in Germany. December 11, 1929.

This invention refers to special developments in, and methods of fixing counterpoising attachments, particularly for cycleinvention as described in the following specification and claims.

Fig. 1 is an elevation of the fixingclamp in the form of a spiral or helical spring; Fig.

2 a plan of same; Fig. 3 is aside view of a pedal with section of outer frame removed to.

illustrate the method of attaching the spiral spring clamp and weight to the axle-sleeve; Fig. 4 is a perspective view of the weight with holding devices; Fig. 5 is a side-view similar.

in part to Fig. 3, but with the'helical or spiral spring clamp for holding the weight used in reversed arrangement, and Fig. 6 is a perspective view of the weight, with holding de vices characterized by projecting letters.

The process of fixing the counterpoise attachment takes place by forcing the ends 2 and 3 of the spiral spring clamp (Fig. 1) apart (as shown by arrows in Fig. 2) and over the axle-sleeve 4 (Fig. 3) around which the spring then snaps, and subsequently pushing the weight 5 under the sleeve 4. According to the tension required, the ends 2 and 3 are made to engage in the notches orrests 6, 6, or, as shown in drawings, 7 7 for example, or in 7 and 8, or, furthermore both only in the rest 8. In some cases it may,of course, be advisable to reverse the position of the clamp 1, so that, as shown in Fig. 5 for example, the bend 9 engages in rest 8 of the weight, whereas the ends 2 and 3 (instead of 9 in Fig. 3) embrace the axle-sleeve. In the latter case'the spacing tension between theends 2 and 3 (as shown by the arrows in Fig. 5) which is exerted in a direction parallel to the axle-sleeve, and is produced by forcing the clamp over the latter, or is previously automatically regulates,

every tension requirement, including that caused by the insertion of the weight. The projections on the weight may also take the form of letters or characters, as shown in Fig. 6 for example, or may be given any other suitable shape, such as for example, notches,

grooves, channels, jags, bosses, hooks, pins,

etc.

When, as shown in Fig. 3 for example, the face a of the tread has been positively held uppermost in horizontal position and consequently subjected to wear and tear for some time because the counterpoise is situated on the face 2) of the tread, a change can be made,

as required, without releasing or removing the device, by simply turning the counterpoise weight 180 degrees around the axle-sleeve, which brings it to face a, in which position it positively holds face I) of the tread uppermost (as shown in Fig. 5) and subjected to equalizing wear and tear. Later on, according to circumstances, the. process can be repeated, so that the faces a and Z) of the tread are alternatingly uppermost.

The clamp 1 may also be used inreverse, as shown in Figure 5, wherein the spring 9 is engaged in the notch 8 and the ends 2 and 3 rest on the axle sleeve; this is the reverse of the showing in Figure 3.

To fasten the spring the part 9 is engaged in the notch and the arms 2 and 3 are spread apart and engaged on the axle. In thus spreading the parts 2 and 3 they will be held in a tighter grip, and the weight willcome After having thus described the nature and method of employment of our invention, what we claim is '1. In a counterpoisedevice, a weight hav- 7 ing a multiplicity ofretaining devices, a spiral spring embracing the axle-sleeve of a pedal and the counterpoise Weight whereby the parts are held under tension.

. 2. In a counterpoiseattachment, a clamping spring for the axle-sleeve, and means for retaining the weight in position by altering the tension spaces of the windings of the spring.

3. A counterpoise means embodying a clamping spring for a revoluble member, and means cooperablewith the said spring for compensating for variations in diameter of the axle sleeve. I

4:. In a device of the character stated, a weight having projections, in combination with a spring member having arms to cooperate with said projections.

In testimony whereof e hereunto aifix our signatures.

ALWIN TALKE. V ARTHUR TALKE. 

